In this paper, a zinc oxide (ZnO) nanotube, fabricated by the hydrothermal growth method on triple-junction (T-J) solar cell devices to enhance efficiency, is investigated. Compared to those of bare T-J solar cells (without antireflection (AR) coating) and solar cells with Si3N4 AR coatings, the experimental results show that the T-J solar cells, which use a ZnO nanotube as an AR coating, have ...

Solar energy storage in the form of chemical is considered a promising alternative for solar utilization. High-performance conversion and significantly rely on sufficient active surface area efficient transport both reactants charge carriers. Herein, structure evolution titania nanotube photocatalyst during photoanode fabrication its effect photoelectrochemical activity microfluidic all-vanadiu...

We use numerical simulations to investigate the effect of electrostatics on the source and drain contacts of carbon nanotube field‐effect transistors. We find that unscreened charge on the nanotube at the contact‐channel interface leads to a potential barrier that can significantly hamper transport through the device. This effect is largest for intermediate gate voltages and for contacts near t...

The initial development of carbon nanotube synthesis revolved heavily around the use of 3d valence transition metals such as Fe, Ni, and Co. More recently, noble metals (e.g. Au) and poor metals (e.g. In, Pb) have been shown to also yield carbon nanotubes. In addition, various ceramics and semiconductors can serve as catalytic particles suitable for tube formation and in some cases hybrid metal...

Abstract Nanoscaled-VPO (vanadium phosphate oxide) catalysts have been prepared on an alumina support with the objective of obtaining crystallites active phase a high surface-to-volume ratio. Since catalysed reaction occurs at surface, these nanoscaled allows studying surface species transformations minimized signal from bulk dominion. The chemical environment and oxidation state has determined...